2026 ICD-10-CM Diagnosis Code S01.411ALaceration without foreign body of right cheek and temporomandibular area, initial encounter

ICD-10-CM Codes›S00–T88›S00-S09›S01

ICD-10-CM S01.411A
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S01.411A is a billable ICD-10-CM diagnosis code for laceration without foreign body of right cheek and temporomandibular area, initial encounter. The 7th character A marks it as an initial encounter code, used while the patient is receiving active treatment. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 604 through 605, 963 through 965. Coders also document this condition as laceration of right cheek. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Any dental condition including traumatic injury; and Open wounds of head and neck, initial encounter.

Code Identity

ICD-10-CM Code
S01.411A
Billable Status
Yes — Valid for Submission
Code Describes
Laceration without foreign body of right cheek and temporomandibular area, initial encounter
Short Description
Laceration w/o fb of right cheek and TMJ area, init
Parent Code
S01.411
Laceration without foreign body of right cheek and temporomandibular area

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS00-S09Injuries to the head
CategoryS01Open wound of head
This CodeS01.411ALaceration without foreign body of right cheek and temporomandibular area, initial encounter

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Laceration of right cheek
  • Open wound of right cheek

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Open wound of head (S01). Use the following options for the applicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR DEN001
Any dental condition including traumatic injury
Default principal diagnosis: inpatient No · outpatient No
CCSR INJ011
Open wounds of head and neck, initial encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Facial Injuries and Disorders

Face injuries and disorders can cause pain and affect how you look. In severe cases, they can affect sight, speech, breathing and your ability to swallow. Fractures (broken bones), especially in the bones of your nose, cheekbone and jaw, are common facial injuries.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert S01.411A to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
873.41 Open wound of cheek
Approximate The match is approximate rather than exact.
ICD-9-CM
873.44 Open wound of jaw
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About S01.411AOverview

Is S01.411A a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report laceration without foreign body of right cheek and temporomandibular area, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character A in S01.411A mean?

The final character A marks the initial encounter: use it while the patient is receiving active treatment for laceration without foreign body of right cheek and temporomandibular area, such as an emergency visit or first evaluation.

What MS-DRG does S01.411A group to?

When laceration without foreign body of right cheek and temporomandibular area, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 604, 605, 963, 964, 965, with relative weights from 0.9160 to 2.7338 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of S01.411A?

Under the General Equivalence Mappings, laceration without foreign body of right cheek and temporomandibular area, initial encounter converts to ICD-9-CM 873.41 (open wound of cheek) and 873.44 (open wound of jaw). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.